Berner Münster-Stiftung (Cathedral of Berne): Historical development of key medieval quarries used for the building of the cathedral (2012-2013).

Restoration Workshop of Nidaros Cathedral, Trondheim: Weathering and conservation of mural paintings in the Archbishop’s Palace (2010); investigation on weathering of the Dalhaugen soapstone, Nordland county (2013).

Directorate for Cultural Heritage, Norway (Riksantikvaren): Investigation and preservation of local quarries used for building now ruined medieval monasteries and churches (2013-2015); weathering and climate at Selja medieval monastery (2016-2017).

The Norwegian Research Council/Norark: Member of the so-called “Utmarksnettverket” (archaeological “outfield” network), on the archaeology of key Norwegian resources, especially in the Middle Ages) (2011-)

Participant at the so-called “Grubleseminar” (Facebook page here), an informal group of experts regularly meeting to discuss the archaeology and history of Norwegian medieval stone buildings.